Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Nomeie o número total de segmento d para barril de madeira s.
 ###Tabelas: CREATE TABLE season_10:_2007_2008 (season_10:_2007_2008_id AUTO_INCREMENT PRIMARY KEY, Series Ep. VARCHAR, Episode INT, Netflix VARCHAR, Segment A VARCHAR, Segment B VARCHAR, Segment C VARCHAR, Segment D VARCHAR) CREATE TABLE championship_drivers_and_constructors (championship_drivers_and_constructors_id AUTO_INCREMENT PRIMARY KEY, Entrant VARCHAR, Constructor VARCHAR, Chassis VARCHAR, Engine VARCHAR, Tyre VARCHAR, Driver VARCHAR, Rounds VARCHAR) CREATE TABLE 2011_boys'_team (2011_boys'_team_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Height VARCHAR, School VARCHAR, Hometown VARCHAR, College VARCHAR) CREATE TABLE most_tournaments_in_junior_san'yaku_komusubi_and_sekiwake_ranks (most_tournaments_in_junior_san'yaku_komusubi_and_sekiwake_ranks_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Total INT, First VARCHAR, Last VARCHAR, Highest rank VARCHAR) CREATE TABLE career_singles_statistics (career_singles_statistics_id AUTO_INCREMENT PRIMARY KEY, Year INT, Tournaments INT, Titles INT, Hardcourt W–L VARCHAR, Clay W–L VARCHAR, Grass W–L VARCHAR, Carpet W–L VARCHAR, Overall W–L VARCHAR, Win % VARCHAR, Year End Ranking VARCHAR)  
SELECT COUNT Segment D FROM season_10:_2007_2008 WHERE Segment A = Wooden s Barrel